论文标题
在2-5 au上具有轨道彗星的彗星活动的一些特殊性
Some peculiarities of activity for comets with orbits on 2 - 5 AU
论文作者
论文摘要
在2-5 AU处轨道的不同动力组的周期性彗星偶尔仍处于活动状态。观察到的这种物体的灰尘活性可以与水冰升华过程（MBC）或无定形水冰（QHC）以及外部原因相关。没有发现与太阳活性指数的循环变化的彗星耀斑的连接。但是一些单独的太阳耀斑会影响彗星的亮度。主小行星带中的彗星对象比诸如Quasi-hilda物体的轨道的彗星具有较低的耀斑统计量。
Periodic comets of different dynamical groups with orbits at 2 - 5 AU still occasionally active. The observed dust activity of such objects can be connected with processes of water ice sublimation (MBCs) or crystallization of amorphous water ice (QHCs) as well as with external causes. No connections of cometary flares with cyclic variations of solar activity indexes were found. But some individual solar flares can affect the brightness of comets. Cometary objects in the main asteroid belt have a lower statistic of flares than comets at orbits like quasi-Hilda objects.
